The silicon valley/startups/VC tribe, and they favour Twitter because 1. that's what their friends use and 2. they like Elon Musk, they want to be like him.
Are they all in the same “tribe”? Maybe you should enlarge the definition?
How about us all IT people who watched the drama unfolding on Twitter while our friend are using FB and Insta, we are far from SV and have mixed feelings about Elon Musk while never in a million years wanting to be like him? Also same “tribe”?